Just finished getting them on about an hour ago. I've already got H&R ARB's which i got to say handling wise make the biggest improvement and definately the first mod to do. On to the springs and dampers, the biggest difference was the car doesn't pitch under braking or acceleration (you know that feeling if you've got a remap). The car does bob more on uneven surfaces but the ride quality has improved massively. All the harshness the S3 suffers is gone. The slight downside is the turn in is not quite as crisp or tight on roundabouts (alignment may sort this). Overall the its now a great handling car, its no sports car (lack feel compared to my corrado, but massively better than a std S3) but the best way to describe it is its deceptively fast through the corners ie, 60mph feels like 40mph.